After the update of 4.15.2, the flow of the original scene was greatly reduced!
The screenshot of the following tests is a comparison of the running test of Aiko Shinohara’s library scene！
The frame rate runs under version 4.12.5
The frame rate runs under version 4.15.2
By contrast, the operating efficiency of 4.15.2 was significantly lower than the previous version! Including the pre-update version, the frame rate dropped by 50%!
I hope to get a viable solution!